The use of a strict protocol in the trial of labor following two previous cesarean deliveries: Maternal and neonatal results.

Over the past few decades, the rate of repeat cesarean deliveries (CD) have taken on pandemic proportions. As part of the global effort to reduce the rate of CD, trail of labor (TOL) following one and even two previous CDs is encouraged. We aimed to evaluate maternal and neonatal outcomes of parturients attempting a TOL after two previous CDs, in which a strict departmental protocol was adopted. A retrospective cohort study of TOL following CD (TOLAC) at a single tertiary center, between 2005 and 2019. Various maternal and neonatal outcomes were assessed, in which parturients attempting TOL after two CD were compared to those after one previous CD. TOL after two CDs was permitted only to those parturients who fulfilled all the criteria of our department's protocol. A univariate analysis was initially conducted and was then followed by a multivariate analysis. A total of 11,620 TOLAC were identified, of which 515 (4.4 %) were after two previous CDs. Overall, vaginal delivery rates were high, however, following two CDs the rate was lower than following one CD (83.1 % vs. 88.5 %, p < 0.01). Rates of uterine rupture, peripartum hysterectomy, and postpartum hemorrhage did not differ significantly between the groups. Neonatal results following two CDs were less favorable (specifically, one minute APGAR, neonatal care unit admissions and mechanical ventilation rates), yet, when controlling for potential confounders, an independent association between neonatal composite outcome and TOL following two CDs was not demonstrated. For parturients with a history of two CDs, when a strict protocol for selecting appropriate candidates is followed, TOL is a reasonable alternative to repeat CD and is associated with favorable maternal and neonatal outcomes.

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Declaration of Competing Interest The authors declare that they have nothing to disclose and that they have no financial or non-financial conflict of interest.